Sunshade attachment for a chair or similar article



FIG. 1 is a perspective view of a sunshade attachment for a chair or similar article, showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a side elevational view the opposite side being a mirror image thereof;

FIG. 4 is a bottom plan view; and

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a sunshade attachment for a chair or similar article, as shown and described. 